Niacin by Seeking Health provides 50 mg of Niacin (as nicotinic acid) in an easy-to-swallow vegetable capsule. Niacin assists in the functioning of the digestive system, skin, and nervous system and is important for the normal conversion of food to energy.* Niacin can also be useful when too much methylfolate is consumed as niacin binds methyl groups and also increases the breakdown of glutamate.